Hi Dylan,
Are you saying you want a flowgraph like this?
Replay Block -> Radio TX
Radio RX -> Host (2x 10GigE)
If so, yes that is possible. See
http://kb.ettus.com/USRP_N300/N310/N320/N321_Getting_Started_Guide#Dual_10_Gb_Interface
for how to benchmark rx. Also, take note of the "second_addr" dev
Hi Tuan,
A few of the in-tree RFNoC blocks do not have GRC support yet. The window
block is one of them. That will come in a future update, although I don't
have an exact timeline.
Jonathon
On Sun, Jan 3, 2021 at 11:24 PM Đình Tuấn Hoàng via USRP-users <
usrp-users@lists.ettus.com> wrote:
> Hi
Indeed, a 900Mhz duplexor with a 400Khz split is an extreme challenge.
If the TX and RX really do need to operate at the same time on more or less the
same frequency, then you have some plumbing to do for sure.
Sent from my iPhone
> On Jan 5, 2021, at 12:07 AM, Marcus D Leech wrote:
>
> To
To do a little expectation-setting, the narrowband MDS of a modern, not that
spectacular, UHF RX chain of better than -140dBm is not that unusual. So when I
talk about a sensitive RX chain, I’m talking about those sorts of levels.
In that kind of context, -24dBm seems deafeningly loud, and -80dB
Hi Marcus,
Hmm, I think a duplexer is quite challenging because it would need an
unphysical Q.
This works for cellular with dedicated up-link and downlink.
For a full-duplex system with same up/downlink (as in RFID), we have for example
uplink = A*cos(2*pi*900MHz*t) and
downlink = B*m(t)*c
If the TX and RX frequencies are a few 100kHz different then what you want is a
duplexor arrangement where the TX frequency is strongly attenuated ahead of the
RX.
This is how repeaters work when multicoipled to a single antenna. The TX
frequency is often attenuated 90dB in the RX path.
Se
Hi Marcus,
> On 01/04/2021 12:25 PM, Lukas Haase wrote:
> In an RFID system, the RX is *designed* to be up-close-and-snugly with
> the other ends TX. There's NO reason to have an input
>stage that is sensitive in the usual RF sense. So, completely
> different engineering goals than in a typi
Hi Cédric,
I'll attempt to answer your questions. I'm more familiar with the
hardware/HDL side of things.
1. The default clock for rfnoc blocks is rfnoc_chdr_clk and this clock is
always present. You can use this clock for everything, unless you need a
different clock (e.g., a faster clock to inc
On 01/04/2021 12:25 PM, Lukas Haase wrote:
In an RFID system, the RX is *designed* to be up-close-and-snugly with
the other ends TX. There's NO reason to have an input
stage that is sensitive in the usual RF sense. So, completely
different engineering goals than in a typical RF system.
I
> Date: Sun, 03 Jan 2021 21:12:18 -0500
> From: "Marcus D. Leech"
> To: usrp-users@lists.ettus.com
> Subject: Re: [USRP-users] X310/UBX as a monostatic transceiver (e.g. RFID
> reader)?
> Message-ID: <5ff27982.9050...@gmail.com>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
>
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